📈Statistics MCQs
Statistics MCQs
490 MCQs51
The two regression co-efficient always have the __________ sign?
ADifferent
BSame
CNone of these
D+ve
52
If r, between u = x and y = -x is _______________?
A+1
B-1
C0
DNon of these
53
Which of the following can never be taken as coefficient of correlation is _____________?
A-99
B.99
C0
D√3
54
Correlation coefficient lies between__________________?
A0 ≤ r ≤ 1
B0 ≤ r ≤ -1
C-1 ≤ r ≤ 1
D1 ≤ r ≤ 0
55
Regression co-efficient is denoted by_____________?
Aby
Bbyx
Cbzx
Dm
56
When the two regression lines coincide there r is __________________?
AZero
BLess than zero
CMore than zero
DGreat
57
The regression co-efficient are _________ origin?
ADependent
BIndependent
CScale
DBoth
58
Least square regression line always passes through ____________________?
A(x,y)
B(X,Y)
C(X,Z)
Dx/y
59
Three brands of coffee are rated for tasted on a scale of 1 to 10. Six persons are asked to rate each brand so that there is a total of 18 observations.The appropriate test to tasted equally good is_____________?
AOne way analysis of variance (ANOVA)
BSpearman Rank difference
CWilcoxon Rank-Sum test
DKruskal-Wallis test
60
The sign test assumes that the_______________?
ASamples are independent
BSamples have same mean
CSample are dependent
DThe Wilcoxon Signed Rank test is used